Welcome to Flatch is an American adaptation of the British mockumentary series This Country, which was created by and starred siblings Daisy May Cooper and Charlie Cooper.

The American adaptation was developed by Jenny Bicks, with Paul Feig attached as director and executive producer through his company Feigco Entertainment.

The series was originally announced under the title This Country before being renamed Welcome to Flatch on May 17, 2021.

Pilot production began in March 2020 but was shut down after just a single day of filming due to the early days of the COVID-19 pandemic.

Despite only one day of footage, producers used it to cut together a ten-minute presentation that was successfully used to sell the series to Fox and secure a full series order.

The series is set in the fictional rural town of Flatch, Ohio, but was actually filmed in North Carolina.

Holmes and Sam Straley appeared in character as Kelly and Shrub Mallet in a crossover guest appearance on the sitcom Call Me Kat, in an episode titled "Call Me Flatch" that aired April 28, 2022.

Jaime Pressly joined the cast as a series regular for season 2, playing Barb Flatch.